WO2019120648A1 - Matériau hybride de garniture de friction ainsi que garnitures de frein fabriquées à partir de ce matériau et procédé de fabrication des garnitures de frein - Google Patents

Matériau hybride de garniture de friction ainsi que garnitures de frein fabriquées à partir de ce matériau et procédé de fabrication des garnitures de frein Download PDF

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Publication number
WO2019120648A1
WO2019120648A1 PCT/EP2018/073994 EP2018073994W WO2019120648A1 WO 2019120648 A1 WO2019120648 A1 WO 2019120648A1 EP 2018073994 W EP2018073994 W EP 2018073994W WO 2019120648 A1 WO2019120648 A1 WO 2019120648A1
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WO
WIPO (PCT)
Prior art keywords
friction lining
inorganic
mixture
lining material
fibers
Prior art date
Application number
PCT/EP2018/073994
Other languages
German (de)
English (en)
Inventor
Marcus Morbach
Original Assignee
Federal-Mogul Friction Products Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Federal-Mogul Friction Products Gmbh filed Critical Federal-Mogul Friction Products Gmbh
Priority to US16/955,399 priority Critical patent/US11359688B2/en
Priority to CN201880081695.7A priority patent/CN111492149B/zh
Publication of WO2019120648A1 publication Critical patent/WO2019120648A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/02—Composition of linings ; Methods of manufacturing
    • F16D69/025—Compositions based on an organic binder
    • F16D69/026—Compositions based on an organic binder containing fibres
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/02—Composition of linings ; Methods of manufacturing
    • F16D69/023—Composite materials containing carbon and carbon fibres or fibres made of carbonizable material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/02—Composition of linings ; Methods of manufacturing
    • F16D69/027—Compositions based on metals or inorganic oxides
    • F16D69/028—Compositions based on metals or inorganic oxides containing fibres
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2200/00—Materials; Production methods therefor
    • F16D2200/0034—Materials; Production methods therefor non-metallic
    • F16D2200/0052—Carbon
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2200/00—Materials; Production methods therefor
    • F16D2200/006—Materials; Production methods therefor containing fibres or particles
    • F16D2200/0065—Inorganic, e.g. non-asbestos mineral fibres

Definitions

  • the present invention relates to a hybrid friction lining material mixture having the specific positive properties of a low-steel friction lining material (so-called Low Steel (LS) friction lining or friction lining material) and an asbestos-free organic friction lining material (so-called Non Asbestos Organic (NAO) friction linings or friction lining material) united.
  • LS Low Steel
  • NAO Non Asbestos Organic
  • the Reibbelagmaterialmischung invention for brake and clutch lining is specified in claim 1 closer.
  • the present invention further relates to a brake lining comprising a carrier plate and a friction lining fastened to the carrier plate, wherein the friction lining is made from the aforementioned hybrid friction lining material.
  • the present invention relates to a method for producing a brake lining using the aforementioned hybrid friction lining material mix.
  • Reibbelaggischungen be for brake and clutch lining z.
  • Usual friction lining formulations basically have the following schematic composition:
  • Lubricants solid lubricants
  • metal sulfides if appropriate also in conjunction with graphite
  • organic components such as resins, rubber, organic fibers (e.g. aramid, polyacrylonitrile or cellulose fibers), and organic fillers.
  • the raw material groups are differently proportioned.
  • US 2010/084233 and US 2010/084232 both relate to a brake asbestos-free (NAO) friction material which is substantially free of copper.
  • the filler content according to US 2010/084232 is 46 to 64% of the total composition.
  • rubber powder, graphite petroleum coke, barite friction dust and hydrated lime can optionally be used.
  • Aramid fibers, polyacrylonitrile and cellulose fibers are used as fibers in the two cited documents.
  • Steel fibers are not mentioned US 2005/004258 describes a friction lining material which is free of copper but contains stainless steel fibers.
  • the filling material used in US 2005/004258 is graphite containing 7 to 15% by volume.
  • WO 201 1/131227 further describes a low-steel (LS) pad material for brake pads which is substantially free of copper.
  • the carbon component is contained in an amount of 36 to 51% by volume in the composition described therein.
  • Low Steel friction lining compositions are designed for high pressure, high temperature applications and have good material properties at high speeds. Such Low Steel friction lining material mixtures are disadvantageous in terms of braking comfort
  • the present invention therefore relates to a hybrid Reibbelagsmaterialmischung for co-operating with a friction partner of gray cast iron or steel brake or clutch linings.
  • the friction lining material mixture according to the invention combines the specific positive properties of a low-steel friction lining material (Low Steel (LS)) and an asbestos-free organic friction lining material (Non Asbestos Organic (NAO)).
  • the friction lining material mixture according to the invention comprises, in% by volume and based on the total adhesive material mixture: (a) 8 to 22% of at least one binder,
  • the at least one binder serves as a matrix and holds together the other components of the Reibbclagmaterialmischung.
  • a binder in principle, for example, a phenolic resin, an epoxy resin, a silicone resin or a nitrile resin and any mixture of these resins may be used or included in the Reibbclagmaterialmischung.
  • the binder comprises a modified phenol.
  • the binder may also be or include a mixture of one or more straight chain or modified phenolic resin systems, wherein the phenolic resin system (s) preferably contain unmodified phenolic resins, silicone modified resins, NBR modified resins, phosphorus modified resins, and / or boron modified resins.
  • a non-phenolic resin may also be used as a binder or the binder may comprise one or more non-phenolic resins.
  • the binder may also be a mixture of a phenolic resin and be a non-phenolic resin or include such.
  • the at least one binder is contained in the friction lining material mixture in a proportion of 15 to 22% by volume, based on the total mixture.
  • the organic fibers included according to the invention in the Reibbelagsmatcrialmischung may be of synthetic origin or of natural origin.
  • Polyacrylic fibers (PAN), polyaramid fibers / aramid fibers or cellulose fibers are used according to the invention as organic fibers.
  • PAN Polyacrylic fibers
  • Aramid fibers preferably have an average length in the range of 0.9 mm to 1.3 mm.
  • the preferred average length of PAN fibers is in the range of 5.0 mm to 7.5 mm, while cellulose fibers preferably have an average length of less than 1 mm.
  • the organic fibers do not comprise aramid fibers for environmental reasons.
  • the organic fibers individually or in the form of a mixture of organic fibers, are contained in the friction lining material mixture in a proportion of 4 to 11% by volume, based on the total mixture.
  • the other organic constituents or organic fillers which are included in the friction-lining material mixture according to the invention preferably comprise resins, rubbers and / or phthalocyanines.
  • the further organic constituents individually or in the form of any mixture thereof, in the Friction lining material mixture in a proportion of 1 to 15% by volume, based on the total mixture.
  • the further organic constituents are contained in the friction lining material mixture in a proportion of 6 to 15% by volume, based on the total mixture.
  • the further organic constituents are contained in the friction lining material mixture in a proportion of 1 to 5% by volume, preferably 1 to 3% by volume, based on the total mixture ,
  • the inorganic fibers optionally included in the friction material mixture may be metal fibers of any metal or metal alloy. They preferably have a length of 0.5 mm to 10 mm. Possible metal fibers are bronze fibers, copper fibers and steel fibers, in particular stainless steel fibers called steel fibers and in particular stainless steel fibers can be used as a replacement for copper and / or titanates in the friction lining material mixture. Inorganic fibers may, according to the invention, also be mineral fibers, glass fibers or carbon fibers and also any mixtures of these and the abovementioned metal fibers. According to a preferred Ausftihrungsform of the present invention, the Reibbelagmaterialmischung and thus also the friction lining are substantially free of asbestos fibers.
  • Essentially free of asbestos fibers in the context of the present invention means that such fibers in the Reibbelagmaterialmischung at most with a proportion of 0.2% by volume, preferably of at most 0.1% by volume and most preferably of 0% by volume to the overall mix, are included.
  • the inorganic fibers alone or in the form of a mixture of inorganic fibers, are present in the friction lining material mixture in a proportion of 8 to 16% by volume, based on the Total mixture, included.
  • the friction lining material mixture is substantially free of inorganic fibers, in particular of metal fibers.
  • substantially free of inorganic fibers, in particular of metal fibers in the context of the present invention means that such fibers are present in the friction lining material mixture at most in a proportion of 0.2% by volume, preferably of at most 0.1% by volume and most preferably of 0% by volume, based on the total mixture, are included.
  • the fibers comprised in the friction lining material mixture are selected from the group consisting of polyacrylonitrile (PAN), polyaramids, cellulosic fibers, mineral fibers and steel fibers, especially stainless steel fibers, and any mixtures thereof.
  • PAN polyacrylonitrile
  • polyaramids polyacrylonitrile
  • cellulosic fibers cellulosic fibers
  • mineral fibers mineral fibers
  • steel fibers especially stainless steel fibers, and any mixtures thereof.
  • the inorganic oxides (component (e)) comprise alumina, magnesia (MgO) and zirconia (Zr0 2 ). These preferred oxides may be included individually or in any combination with each other and / or with other inorganic oxides in the friction lining material mixture.
  • MgO magnesia
  • Zr0 2 zirconia
  • These preferred oxides may be included individually or in any combination with each other and / or with other inorganic oxides in the friction lining material mixture.
  • Another example of inorganic oxides which may be mentioned are the titanates, which are mixed oxides and for example also occur naturally as titanium minerals.
  • the inorganic oxides alone or in the form of a mixture of inorganic oxides, in the friction lining mixture in a proportion of 8 to 42% by volume, more preferably from 10 to 40% by volume, based on the Total mixture, included.
  • magnesium oxide and / or zirconium oxide are contained with a high proportion in the friction lining material mixture.
  • a high proportion means 8 to 42% by volume, more preferably 20 to 41% by volume.
  • the magnesium oxide and / or the zirconium oxide then acts both in the Reibbelagmatcrialmischung and in the friction lining as a matrix-forming filler, as well as an abrasive.
  • the friction lining material mixture is substantially free of titanates.
  • Essentially free of titanates in the context of the present invention means that titanates in the Reibbelagmaterialmischung at most with a proportion of 0.2% by volume, preferably of at most 0.1% by volume and most preferably of 0% by volume based on the total mixture, are included.
  • Zirconium silicates and / or the layered silicate vermiculite are preferably used according to the invention as inorganic silicates (component (f)). Both act as abrasives.
  • the inorganic silicates are contained in the friction lining material mixture in a proportion of 4 to 14% by volume, based on the total mixture.
  • the friction lining material mixture is substantially free of inorganic silicates.
  • substantially free of inorganic silicates means that inorganic silicates are present in the friction lining material mixture at most with a proportion of 0.2% by volume, preferably of at most 0.1% by volume and very particularly preferably of 0% by volume. %, based on the total mixture.
  • the inorganic sulfur compounds of component (g) according to the invention preferably comprise metal sulfides, in particular tin sulfides, zinc sulfides, iron sulfides, molybdenum sulfides, antimony trisulfide and metal sulfide complexes. These compounds may be included individually or in any combination with each other in the composition.
  • the above-mentioned sulfur compounds function especially as lubricants.
  • the at least one inorganic sulfur compound is according to another preferred Barium sulphate or barium or barium sulphate or barium according to the invention
  • the barium sulphate can be present in a proportion of 1 to 20% by volume, preferably in a proportion of 8 to 18% by volume, even more preferably in a proportion of 11 to 16% by volume. , in each case based on the total mixture, be included in the friction lining material mixture according to the invention.
  • the barium sulfate may also be included in combination with the metal sulfides and / or metal sulfide complexes in the friction pad material mixture.
  • the friction lining material mixture may contain sulfur. The proportion of 1 to 20% by volume of the total mixture for sulfur and / or one or more inorganic sulfur compounds is not exceeded even in the above-mentioned mixtures.
  • sulfur or the inorganic sulfur compounds are contained in the friction lining material mixture in an amount of from 1 to 17% by volume, based on the total mixture.
  • Inorganic hydroxides (component i) preferably comprise magnesium or calcium hydroxide and any mixtures thereof.
  • the inorganic hydroxides are, individually or in the form of a mixture of inorganic
  • metals in the Reibbelagmaterialmischung in a proportion of 0.5 to 2% by volume, based on the total mixture.
  • metals preferably comprise iron, steel, copper, tin or zinc, but also metal alloys, such as bronze or brass. These and other metals may be added to the composition in the form of a powder.
  • tin powder and / or zinc powder can act as a lubricant.
  • the metals or metal alloys individually or in the form of a mixture of metals and / or Metal alloys, in the Reibbelagmaterialmischung in a proportion of 0.5 to 2% by volume, based on the total mixture.
  • the friction lining material mixture is substantially free of metals or metal alloys.
  • the friction lining material mixture is substantially free of copper or copper alloys.
  • Substantially free of metals or metal alloys and essentially free of copper and / or copper alloys means in the context of the present invention that these in the Reibbelagmaterialmischung at most with a proportion of 0.2% by volume, preferably of at most 0.1% by volume and most preferably from 0% by volume based on the total mixture.
  • the possible small amounts of metal, in particular copper or alloys thereof may result from contamination of the other components with metals, for example with copper or copper alloys, such as bronze or brass.
  • the friction lining material mixture is substantially free of copper, copper alloys and titanates.
  • Copper and titanates such as hexatitanate and octatitanate, are expensive components due to their limited availability, yet they can provide the friction lining with favorable tribological properties.
  • the use of copper is also disadvantageous for environmental reasons, because copper is released by the abrasion of the brake pad and released into the environment. Thus, it may be advantageous to dispense in the friction lining material mixture on copper, copper alloys and / or titanates.
  • the invention relates to a hybrid friction lining material mixture containing in% by volume of the friction lining material mixture:
  • a most preferred composition for the friction lining material comprises from 18 to 20% by volume of at least one binder, from 5 to 7% by volume organic fibers or a mixture of organic fibers, from 7 to 9% by volume of at least one other organic component, from 9 to 11 volumes % Carbon or a material consisting essentially of carbon, 13 to 15% by volume of inorganic fibers or a mixture of inorganic fibers, 21 to 23% by volume of at least one inorganic oxide, in particular magnesium oxide and / or zirconium oxide, 5 to 7% by volume % of at least one inorganic silicate, in particular zirconium silicate and / or vermiculite, 13 to 15% by volume of sulfur and / or at least one inorganic sulfur compound and 0 to 2% by volume of at least one inorganic hydroxide.
  • the volume% fractions of the individual components are each chosen such that, in total, if appropriate together with further optional constituents, 100% by volume results.
  • This particularly preferred composition contains, apart from possible, unavoidable impurities, no metals or Metalllegicrept (component (j)).
  • the composition consists of the components mentioned in the preceding section. Their volume% Shares add up to 100% by volume. Even if the composition consists only of these components, it should not be ruled out according to the invention that conventional impurities, preferably with a proportion of at most 2% by volume, can be contained in the composition.
  • Another very particularly preferred composition for the friction lining material comprises 19 to 21% by volume of at least one binder, 4 to 6% by volume of organic fibers or a mixture of organic fibers, 12 to 14% by volume of at least one further organic constituent, 13 to 15 Volume% of carbon or at least one material consisting essentially of carbon, 9 to 11% by volume of inorganic fibers or a mixture of inorganic fibers, 9 to 11% by volume of at least one inorganic oxide, in particular magnesium oxide and / or zirconium oxide, 1 to 13% by volume of at least one inorganic silicate, in particular zirconium silicate and / or vermiculite, 14 to 16% by volume of sulfur and / or at least one inorganic sulfur compound and 0 to 2% by volume of at least one inorganic hydroxide, the volume% fractions
  • the individual components are each chosen so that in total, optionally together with further optional components, 100% by volume.
  • This particularly preferred composition contains, apart from possible unavoidable impurities, no metals or
  • the composition consists of the components mentioned in the preceding section. Their volume% shares add up to 100% by volume. Even if the composition consists only of these components, it should not be ruled out according to the invention that conventional impurities, preferably with a proportion of at most 2% by volume, can be contained in the composition.
  • Another very particularly preferred composition for the friction lining material comprises 16 to 18% by volume of at least one binder, 10 to 12% by volume of organic fibers or a mixture of organic fibers, 0 to 2% by volume. at least one further organic constituent, from 15 to 17% by volume of carbon or at least one material consisting essentially of carbon, from 39 to 41% by volume of at least one inorganic oxide, in particular magnesium oxide and / or zirconium oxide, from 12 to 14% by volume of sulfur and / or or at least one inorganic sulfur compound, 0 to 2% by volume of at least one inorganic hydroxide and 0 to 2% by volume of at least one metal.
  • volume% fractions of the individual components are each chosen such that, in total, if appropriate together with further optional constituents, 100% by volume results.
  • This particularly preferred composition contains, apart from possible, unavoidable impurities, no inorganic fibers (component (d)) and no inorganic silicates (component (0).
  • the composition consists of the components mentioned in the preceding paragraph. Their volume% shares add up to 100% by volume. Even if the composition consists only of these components, it should not be ruled out according to the invention that conventional impurities, preferably with a proportion of at most 2% by volume, can be contained in the composition.
  • the friction lining material mixtures according to the invention thus comprise binder and filler as structurant and as support material for the other functional formulation constituents, such as, for example, abrasives, lubricants or metals. Their tribological function or effect is influenced by interactive effects of the respective carrier.
  • lubricant according to the invention preferably at least one metal sulfide, for example tin sulfide, zinc sulfide, iron sulfide or molybdenum sulfide, organic lubricants or metal lubricants, such as tin or zinc powder, and any combinations thereof used.
  • the lubricant may be a metal sulfide complex.
  • the novel hybrid material concept according to the invention is characterized by a modification of the proportion of organic constituents in the coating material mixture. Furthermore, the new hybrid material concept is characterized by the use of magnesium oxide and / or zirconium oxide or zirconium oxide as a filler in combination with the further filler component (h) and / or in combination with barium sulfate or barite. This combination forms the so-called backbone of the friction lining material mixture.
  • the filler component (h) is in an amount of 8 to 18% by volume. preferably in an amount of 10 to 16% by volume, and is either carbon or at least one material consisting essentially of carbon.
  • the material consisting essentially of carbon is preferably selected from the group consisting of natural graphite, synthetic graphite, petroleum coke and carbon black.
  • the friction lining material mixture according to the invention comprises baryte or barium sulfate or a mixture of one or more of the abovementioned filler components (h) with barium or barium sulfate as the main filler.
  • the main filler (backbone) of the friction lining material mixture according to the invention has been modified according to a preferred embodiment compared to the prior art in that the new main filler essentially consists of a mixture of magnesium oxide (MgO) in combination with carbon and / or a material consisting essentially of carbon , especially petroleum coke (Petroleum Coke), and / or is formed in combination with barite. Furthermore, in comparison with the prior art, the abrasives were modified in such a way that according to the invention they are "milder abrasives".
  • the invention therefore also relates, according to a further aspect, to brake linings comprising a carrier plate and a friction lining fastened to the carrier plate, wherein the friction lining is produced from the hybrid friction lining material mixture according to the invention.
  • the invention also includes a method for producing a brake lining, comprising the following steps: Blending at least one binder,
  • At least one abrasive and filler material to form a homogeneous mixture with a composition based on the total volume of the hybrid friction material mixture as defined in any one of claims 1 to 16,
  • Recipe technology can be the above material concepts LS and NAO distinguished by their main strand (backbone).
  • the backbone is basically the 'main filler' of a recipe and thus serves as a structurant and as a carrier for other functional ingredients, such as abrasives, lubricants or metals, whose tribological function or effect is influenced by the respective backbone through interactive effects.
  • the friction lining material mixtures and friction linings according to the invention are characterized both by an outstanding braking performance al s also characterized by excellent braking comfort.
  • the friction linings prove to be advantageous, which the Brake fade, heat wear resistance, Bremsrubbeln and squeaking.
  • the friction linings have a long service life and there is a reduced formation of wheel dust. The invention will be explained in more detail below.
  • hybrid A the material according to the invention is referred to as hybrid A, hybrid B and hybrid C.
  • the following compositions according to the example of Hybrid A, Hybrid B and Hybrid C were prepared in a standard mixer for approximately 10 minutes and then placed in a molding press and baked according to the prior art.
  • the values represent rounded volume% values.
  • the inorganic oxides are alumina, magnesia, zirconia,
  • the inorganic silicates (2) are zircon and vermiculite
  • the material classes (A) to (C) according to the invention showed the following properties:
  • FIG. 1 shows the characteristics of the various hybrid material classes according to the invention, namely Hybrid A, Hybrid B, Hybrid C in comparison to a Low Steel and NAO friction lining material composition.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Composite Materials (AREA)
  • Materials Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

L'invention concerne un mélange de matériaux de garniture de friction pour des garnitures de frein ou d'embrayage, qui contient : 8 à 22 % en volume de liants, 3 à 12 % en volume de fibres organiques, 1 à 20 % en volume d'autres composés organiques, 0 à 20 % en volume de fibres inorganiques, 5 à 50 % d'oxydes inorganiques, 0 à 15 % de silicates inorganiques, 1 à 20 % de soufre inorganique ou de composés de soufre inorganiques, 0 à 10 % de métaux ou d'alliages de métaux et de charges, en particulier de coke de pétrole et/ou de barytine. Les garnitures de friction fabriquées à partir du mélange de matériaux de garniture de friction selon l'invention se caractérisent par une excellente puissance de freinage et un confort de freinage excellent et allient par voie de conséquence les propriétés positives spécifiques à la fois de matériaux en acier faible (LS) et de matériaux organiques sans amiante (NAO).
PCT/EP2018/073994 2017-12-19 2018-09-06 Matériau hybride de garniture de friction ainsi que garnitures de frein fabriquées à partir de ce matériau et procédé de fabrication des garnitures de frein WO2019120648A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US16/955,399 US11359688B2 (en) 2017-12-19 2018-09-06 Hybrid friction lining material, brake linings produced from same and method for producing same
CN201880081695.7A CN111492149B (zh) 2017-12-19 2018-09-06 混合摩擦片材料以及由此制造的刹车片及其制造方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017130491.6A DE102017130491A1 (de) 2017-12-19 2017-12-19 Hybrid-Reibbelagmaterial sowie daraus hergestellte Bremsbeläge und Verfahren zu deren Herstellung
DE102017130491.6 2017-12-19

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WO2019120648A1 true WO2019120648A1 (fr) 2019-06-27

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US (1) US11359688B2 (fr)
CN (1) CN111492149B (fr)
DE (1) DE102017130491A1 (fr)
WO (1) WO2019120648A1 (fr)

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IT202100008807A1 (it) 2021-04-08 2022-10-08 Itt Italia Srl Composizione di materiale d'attrito e pastiglia freno associata
WO2023248122A1 (fr) 2022-06-20 2023-12-28 Itt Italia S.R.L. Composition de matériau de friction et élément de friction associé
WO2024105609A1 (fr) 2022-11-18 2024-05-23 Itt Italia S.R.L. Composition améliorée de matériau de frottement et élément de frottement associé

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JP2024014374A (ja) * 2022-07-22 2024-02-01 株式会社アドヴィックス 摩擦材組成物および摩擦材
CN115322517A (zh) * 2022-09-13 2022-11-11 久铖高科(厦门)集团有限公司 一种电机用电磁制动摩擦片及其制备方法

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US20210071729A1 (en) 2021-03-11

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